Gearing.



PATBNTBD DBG. 8, 1903.

L. S. CLARKE.

GEARING.

APPLIGATION FILED APB. s. 1903.

2 SHEETS-SHEET 1.

No MODEL.

fmw's'u.

INVENTOR. e?

Nw Qw l .l @I

Q WITNESSES m PATENTBD D50. a, 1903.

L. S. CLARKE.

GEARING.

APPLICATION FILED APB. 3, 1903.

2 SHEETS-SHEET 2.

NO MODEL.

www

nula

WITNESSES;

Sterns atented `December 8, i963.

hattest einen.

LOUIS S. CLARKE, OF HAVERFORD, PENNSYLVANIA.

SPECEXGA forming' part of Letters Eatent No. 746,027, dated December 8,1903- pplication iiled April S, 1903. Serial No. 150,896. (No mndel Toall whom it 71mg/ concern:

Be it known that l, LOUIS S. CLARKE, a citizen of the United States,residing at Haverford, Montgomery county, State of Pennsylvania, haveinvented certain new and useful Improvements in Gearing, of which thefollowing' is a specilication.

This invention relates to an improvement in `nearing. It has for itsobject to provide a simple, compact and efficient gear mechanism for thetransmission of power. The said gear mechanism, in its illustratedembodiment, is shown as employed in the Iransniission of power from asuitable motor, not shown, mounted in a convenient and desirable mannerupon the framework of a motor vehicle, to the rear axle of such vehicle;but

it is to be understood that the mechanism herein shown may be employedin other relations than that illustrated.

In order that the invention may be more readily understood, reference isto be had to the accompanying drawings, in Which,

Figure l is a longitudinal, vertical sectional vieiv, certain of theparts being shoivn in elevation.

Figure 2 is a horizontal plan View, certain parts being shown insection.

Figure 3 is a section on theline 3 3 of Figure l.

lu the drawings, y

l designates a rotatable shaft which, in this instance, happens to bethe rear axle of a motor vehicle, and upon this shaft is mounted acasing 2 composed of the two symmetrical portions secured together bymeans of the bolts 3 in a manner clearly shown in the drawings.

The said shaft l consists of two parts, the inner ends of which arelocated Within the casing 2 and are connected together through themedium of a suitable equalizing gear mechanism. Theeqnalizinggearmechanism consists of two disks #l t0 provided with internal gear teethLl-l. The said disks e() are connected to the respective adjacent endsof the shaft l and are provided with inwardly projecting sleeves onwhich is mounted a support e3 to which is rigidly secured the spur wheell, as Vis clearly shown in Figures l and S of the drawings.

A series of pinions 44: separated into three pairs or couples arecarried by the support e3. One half of the said pinions engage theinternal gear teeth 4l of one of the disks 40, and the other half ofsaid pinions engagethe other disk 40, and the inner ends of each pair ofpinions engage or mesh with each other, as is indicated in dotted linesin Figure l of the drawings7 and when the vehicle is traveling in astraight line and the rear Wheels thereof are each rotating with thesame speed, the equalizing gear mechanism will rotate bodily and therewill be no relative movement between the tivo members or parts of theshaft l; but when the vehicle is turning, it is obvious that one memberof the shaft l can rotate relatively to the other by reason of theengagement of the internal gear teeth of the disks e0 with the smallpinions 44.

The spur Wheel 4 is adapted to mesh with a spur wheel 5, rigidly mountedupon the main or drive shaft 6 of the gear mechanism. As illustrated,the diameter of the spur Wheel is substantially four times that of thespur Wheel but it is to be understood that the relative diameters may bealtered to such proportions as may be regarded desirable.

7 is a bevel Wheel also mounted and rigidly secured upon the drive shaft6, at one end thereof, and upon the opposite end of s;.id drive shaft 6is mounted a disk or wheel 8 which is adapted to cooperate with a brakeband 9, which is com posed of two parts hinged together underneath thesaid disk, the hinged or pivoted connection between the two parts notbeing shown. 1t Will readily be understood that the said band may be asingle, continuous piece, or, on the other hand, said brake bandmayconsist of two separate parts hinged at separate points upon astationary part or bracket extending out from the casing to a positionbeneath the said disk 8.

The brake band is provided with lugs lO, having` holes therethrough inwhich is slidably mounted a rod l1; the said rod also extends looselythrough a stationary bracket l2 located intermediate the said lugs l0.

Coiled about the said rod ll are tivo Wire springs i8, respectivelylocated between the said bracket and the respective lugs upon the saidbrake band. The brake band is IOO caused tc grasp the disk wheel 3 bymeans of a pull rod 14- which is connected to one end of a lever 15, thelatter being pivoted inter- .mediate its ends to lugs, not shown,vwhichextend from one side of the brake band, the opposite end of said leverbeing pivotally connected at 16 to one end of the rod 1l, as is clearlyshown in Figure 2 of the drawings. It will be understood that the pullrod is connected to mechanism locatedin a position to be convenientlyoperated by a person guiding the vehicle.

The respective sides of the casing 2 are provided with boxings or boxes17, within which are located annular ball races 18, for the ballbearings 19.

The said ball races are secured' and held in position by means of thescrew-threaded face plates 20, which are screwed into the screwthreadedends of the said boxes or boxings. 21 designates the hub of the bevelwheel 7 which is mounted upon the main or drive shaft 6. Also mountedupon the shaft 6 and in contact with the hub 21 is a cone 22, for theball bearings 19, the said bail bearings occupying a position betweenthe said cone 22 and the annular ball race secured in one of the saidboxes 17.

The ball bearings 19, mounted upon the other end of the shaft, arelocated between the ball races 18, and the cone 24 mounted upon the saidshaft, and secured to rotate therewith..

The main or drive shaft 6 may be adjusted longitudinally bysimultaneously rotating the face plates 2O so as to cause them to movebodily in the same direction; that is to say, by rotating one of thesaid plates to the right and sim nltaneously rotating the other plate totheleft. By this means, the spur wheels4a'nd 5 may be brought intoaccurate mesh and alinement, also the bevel wheel 7, mounted upon thesaid drive shaft 6, may be brought into accurate mesh with the bevelpinion 25 mounted upon the rear end of the shaft 26, which extendsforwardly to the engine or motor, not shown.

It is obvious that by simultaneously rotating each of the said faceplates to the right or to the left and by rotating either of said platesalone to the right or left, the ball bearings will be tightened orloosened.

27 is a boxing secured to the forward portion of the casing 2. Withinthe said boxing is an annular casi-ng 28 having a screw threaded portion29 in engagement with screw threads formed upon the inside of the outerhollow end of the said boxing. Each of the ends of the said casing 28is'provided with right angled annular seats 30 and 31, within which areseated annular ball races 32 and 33, for the ball hearings 34 and 35,the former resting upon the cone 36 secured upon the shaft 26 so as tohave longitudinal movement thereon. The cone bearing 36 may be adj ustedlongitudinally of the shaft 26 by means of the face plate 37 which hasscrewthreaded engagement with the shaft 26 as shown in the drawings, andthe face plate may be held in adjusted position by a locknut, as shown.

The ball bearings 35 are seated within a depression 38 formed in therear face o-i` the bevel pinion 25 as clearly illustrated. The annularball races 32 and 33 and the cone 36 may be adjusted longitudinally inthe direction desired upon the shaft 26 by proper adjustinent of thecasing 28 and the face plate 37.

39 designates a dust ring located between the face plate 37 and the ballrace way 32, the said ring consisting of a suitable mate' rial, forinstance felt, and its purpose is to exclude dust from the ball bearings34.

It is to be understood that I do not desire to be restricted to theprecise construction and arrangement'ot' the parts which I havedescribed and illustrated in the drawings, as it is obvious that changesmay be made without departing from the spirit of my invention. Forinstance, the drive shaft 6 and with it the gear wheels carried thereby,the bevel pinion 25 and the rear end of the shaft 26, may all beelevated to a higher position so that the spur wheel 5 will mesh withthe spur wheel 4 at any point above the present position of engagementto the top of the said spur wheel 4, or, on the other hand, theaforesaid parts may be moved to a lower position so that the spur wheel5 will mesh with the spur wheel 4 at any point below the presentposition of engagement to the bottom of said spur wheel 4.

Having thus described my invention, I claim- Y 1. In combination, adriven element,`a casing supported on said element, a driving elementsupported on said casing, a gear connection between said elements, and abrake mechanism associated with said driving element and adapted toretard and control its movement.

2. In combination, a driven element, a casing supported on said element,a driving element supported on said casing, a gear connection betweensaid elements, a brake disk rigidly secured to and adapted to move inunison with the said driving element, and a friction device adapted toco-operate with said brake disk to retard and control the movevment ofthe driving element.

3. In combination, a driven element, a cas- -ing supported on saidelement, a drivingele- IOO l'IO

within said casing and connected 'to said shaft and adapted to rotatetherewith, a driving shaft supported by the said casing and arranged inparallel relation to the driven shaft, a power transmission shaftarranged at right angles to the said shafts, and gear connection betweensaid power transmission shaft and said spur wheel.

5. In combination, a driven shaft consisting of two parts havingadjacent ends connected together by suitable means, a casing supportedon said shaft, a spur wheel located within said casing and connected tothe said shaft, a driving shaft supported by said casing, a powertransmission shaft, gear connection between said power transmissionshaft and said spur wheel, and means for adjusting the said gearconnection.

In combination, a driven shaft consisting of two parts having adjacentends which are connected together by any suitable means, a casingsupported on said shaft, a spur wheel located within said casing andconnected to said shaft, and adapted to rotate therewith, a drivingshaft supported by said casing, a spur wheel rigidly secured to saiddrive shaft and engaging the spur wheel connected to the said drivenshaft, a bevel wheel also secured on the said drive shaft, to rotatetherewith, a power transmission shaft and a bevel pinion secured thereonand engaging the said bevel wheel.

7. In combination, a driven shaft consisting of two parts havingadjacent ends, acasing supported on said shaft, an equalizing gearmechanism located within said casing and connecting the said adjacentends, a gear wheel located within said casing and secured to theequalizing gear mechanism and adapted to rotate with the said drivenshaft, a driving shaft supported by the said casing and arranged inparallel relation to the driven shaft, a power transmission shaftarranged at right angles to the said shafts, and a gear connectionbetween said power transmission shaft and said spur wheel.

S. In combination, a driven shaft consisting of two parts havingadjacent ends, a casing supported on said shaft, an equalizing gearmechanism located within said casing and connecting the said adjacentends, a gear wheel located within said casing and secured to theequalizing gear mechanism and adapted to rotate with the said drivenshaft, a driving shaft supported by said casing, a power transmissionshaft, gear connection between said power transmission shaft and saidspur wheel, and means for adjusting the said gear connection.

9. In combination, a driven shaft consisting of two parts havingadjacent ends, a casingr supported on said shaft, an equalizing gearmechanism located within said casing and connecting the said adjacentends, a spur wheel located within said casing and secured to theequalizing gear mechanism and adapted to rotate with the said drivenshaft, a drive shaft supported in said casing, a spur wheel rigidlysecured to said drive shaftand engaging the spur wheel secured to theequalizing gear mechanism, a bevel wheel also secured to said driveshaft to rotate therewith, a power transmission shaft, and a bevelpinion secured thereon and engaging the said bevel wheel.

l0. In combination, a shaft, a spur wheel secured to said shaft torotate therewith, a casing supported on said shaft, boxes located on therespective sides of said casing, annular ball races supported in saidboxes, ball bearings mounted in said races, adjustable cap platesconnected to said boxes for adjusting said races, a shaft supported uponsaid ball bearings, a spur wheel secured on the latter shaft, a bevelwheel secured on said last mentioned shaft, and a bevel pinion inengagement with said bevel wheel.

l1. In combination, a shaft, a spur wheel secured to said shaft torotate therewith, a casing supported on said shaft, boxes located on therespective sides of said casing, annular ball races secured in saidboxes, a shaft, the ends of which extend intosaid boxes, ball bearingsseated in said ball races and which support the last named shaft, gearwheels mounted on the latter shaft, and means for simultaneouslyadjusting the annular ball races and the shaft and gears supportedthereon.

l2. In combination, a shaft, a spur wheel secured to said shaft torotate therewith, a casing supported on said shaft, boxes located on therespective sides of said casing, annular ball races secured in saidboxes, a shaft, the ends of which extend into said boxes, ball bearingsseated in said ball races and which support the last named shaft, gearwheels mounted on the latter shaft, and means for simultaneouslyadjusting the annular ball races and the shaft and gears supportedthereon, said means comprising cap plates having screw-threadedconnection with the said boxes and engaging the outer side of theannular ball races.

In testimony that I claim the foregoing as my invention I have hereuntosigned my name this 18th day of March, A. D. 1903.

LOUIS S. CLARKE.

In presence of- THoMAs SHIELDs CLARKE, JAMES KING CLARKE.

IOC

ITO

